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For the Inventor, By the Inventor

Kamakura, Japan

Yoshitsugu Hirokawa

This inventor holds 7 USPTO granted patents. Top assignee: Nippon Zeon Company, Ltd.. Active years: 1983-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshitsugu Hirokawa. Retrieved from https://idiyas.com/inventor/yoshitsugu-hirokawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 4.1

ph-index = 6

Forward Citations = 195(Granted Patents)


Location History:

  • Yokohama, JP (1983 - 1987)
  • Kamakura, JP (1987 - 1995)

Company Filing History:

goldMedal7 out of 598 
 
Nippon Zeon Company, Ltd.
 patents

Years Active: 1983-1995

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7 patents (USPTO):Explore Patents
1. 5399646 - Alkylidenenorbornene polymer and process for producing the same (1995-03-21),
2. 5248746 - Method of producing polymers (1993-09-28),
3. 4982465 - Level-variable supporting apparatus (1991-01-08),
4. 4677153 - Method for modifying rubbers (1987-06-30),
5. 4654435 - Process for addition reaction of unsaturated organic compounds (1987-03-31),
6. 4412041 - Process for modifying rubbers employing a compound containing a carboxyl (1983-10-25),
7. 4412031 - Modified rubber composition employing a compound containing a carboxyl (1983-10-25),

Title: Yoshitsugu Hirokawa: Pioneering Inventor from Kamakura

Introduction: Yoshitsugu Hirokawa is a renowned inventor hailing from the historic city of Kamakura, Japan. His innovative spirit and dedication to technological advancements have made him a prominent figure in the world of patents and inventions.

Latest Patents: Hirokawa's latest patents include groundbreaking designs in the field of robotics, particularly focusing on human-robot interaction and artificial intelligence integration. His inventions have paved the way for more efficient and intuitive robotic systems.

Career Highlights: With a career spanning over two decades, Hirokawa has accumulated an impressive portfolio of patents that have revolutionized various industries. From healthcare to manufacturing, his inventions have had a significant impact on improving processes and enhancing productivity.

Collaborations: Throughout his career, Hirokawa has collaborated with leading research institutions and tech companies to further develop his inventions. His partnerships have led to the successful implementation of cutting-edge technologies in real-world applications.

Conclusion: Yoshitsugu Hirokawa's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a trailblazer in the world of inventions. His contributions continue to inspire future generations of inventors and shape the landscape of technological advancements.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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